region   (string)    name of the location of the server e.g. "us-west-1"
comment  (sentence)  optionally add a comment to this setting
```

or environment variables

```
KEY:
site  label the server and its location

ARGS:
MINIO_SITE_NAME     (string)    name for the site e.g. "cal-rack0"
MINIO_SITE_REGION   (string)    name of the location of the server e.g. "us-west-1"

```
curl http://minio1:9001/minio/health/cluster
HTTP/1.1 503 Service Unavailable
Accept-Ranges: bytes
Content-Length: 0
Server: MinIO
Vary: Origin
X-Amz-Bucket-Region: us-east-1
X-Minio-Write-Quorum: 3
X-Amz-Request-Id: 16239D6AB80EBECF
X-Xss-Protection: 1; mode=block
Date: Tue, 21 Jul 2020 00:36:14 GMT
```

### Cluster-readable probe

With the `mc` tool, the configuration is very simple to add. Let us say that the MinIO server is aliased as `myminio` in our mc configuration. Execute the following:

```
mc mb myminio/images
mc event add  myminio/images arn:minio:sqs::1:elasticsearch --suffix .jpg

  "requestID": "16ABE7A785E7AC2C",
  "userAgent": "MinIO (linux; amd64) minio-go/v7.0.15 mc/DEVELOPMENT.2021-10-06T23-39-34Z",
  "requestHeader": {
    "Authorization": "AWS4-HMAC-SHA256 Credential=minio/20211008/us-east-1/s3/aws4_request,SignedHeaders=host;x-amz-content-sha256;x-amz-date;x-amz-decoded-content-length,Signature=4c60a59e5eb3b0a68693c7fee9dbb5a8a509e0717668669194d37bf182fde031",
    "Content-Length": "380",